1,2,3-Triazoles based 3-substituted 2-thioquinoxalines: Synthesis, anti-bacterial activities, and molecular docking studies
作者:Ali Keivanloo、Mahsa Fakharian、Saghi Sepehri
DOI:10.1016/j.molstruc.2019.127262
日期:2020.2
2-propargythioquinoxalines with aryl azides catalyzed by copper(II) salen complex afforded novel 1,2,3-triazole-linked thioquinoxalines derivatives. The use of salen copper(II) complex as a catalyst, increased the reaction rate and reduced the loading of the toxic copper species. Results obtained from the in vitro anti-bacterial activities of the synthesized compounds revealed that compounds 7e, 7g, and 7k are active
摘要 通过铜催化的点击反应合成了基于 3-取代的 2-硫喹喔啉的新型 1,2,3-三唑。筛选了新的 1,2,3-三唑类化合物的体外抗菌活性,并进行了分子对接研究。起始材料包括,3-取代-2-炔丙基硫基喹喔啉由2,3-二氯喹喔啉、脂肪胺、硫化钠和炔丙基溴制备。2-炔丙基硫喹喔啉与芳基叠氮化物在铜 (II) 沙伦络合物催化下的点击产生了新型的 1,2,3-三唑连接的硫喹喔啉衍生物。使用salen铜(II)配合物作为催化剂,提高了反应速率并减少了有毒铜物质的负载。从合成化合物的体外抗菌活性获得的结果表明,化合物 7e、7g、和 7k 对枯草芽孢杆菌和藤黄微球菌具有活性。此外,计算机分子对接结果表明实验活性与计算的结合亲和力之间存在良好的相关性。对接研究证明 7e 是最有效的化合物。此外,结合图表现出的活性可能归因于苯环对位的给电子和亲脂基团的存在以及与蛋白质活性位点的疏水相互作用和氢键。
Imidazoquinoxaline compounds
申请人:Nordisk A/S
公开号:US05276028A1
公开(公告)日:1994-01-04
The heterocyclic compounds having the general formula I ##STR1## wherein R.sup.3 is ##STR2## wherein R' is H, C.sub.1-6 -alkyl or C.sub.3-7 -cycloalkyl; --B-- is --C(R").dbd.N-- or --N.dbd.C(R")-- wherein R" is a cyclic amine or --NR"'R"", wherein R"' and R"" independently are H,C.sub.1-6 -alkoxy, C.sub.3-7 -cycloalkyl or C.sub.1-6 -alkyl. The compounds are useful in psychopharmaceutical preparations as anticonvulsants, anxiolytics, hypnotics and in improving the cognitive function of the brain of mammals.
efficient protocol is described for the synthesis of 1-alkyl-2-(aryloxy)methyl-1H-pyrrolo[2,3-b]quinoxalines via the one-pot reaction of phenol or 2-naphthol derivatives, propargyl bromide, and N-alkyl-3-chloroquinoxaline-2-amines in the presence of palladium catalyst. This one-pot reaction is carried out in the absence of any copper salt at room temperature. The reaction product is dependent on the nature
摘要描述了一种新颖,简单而有效的方案,用于通过苯酚或2-萘酚衍生物的一锅反应合成1-烷基-2-(芳氧基)甲基-1 H-吡咯并[2,3- b ]喹喔啉,炔丙基溴和N-烷基-3-氯喹喔啉-2-胺在钯催化剂的存在下。该一锅法反应在室温下在不存在任何铜盐的情况下进行。反应产物取决于所用碱的性质。使用吗啉作为碱,得到最终的环化产物,而三乙胺仅得到偶联产物。 图形概要
Development of an unexpected reaction pathway for the synthesis of 1,2,4-trisubstituted pyrrolo[1,2-a]quinoxalines through palladium-catalyzed cascade reactions
作者:Ali Keivanloo、Atena Soozani、Mohammad Bakherad、Mahdi Mirzaee、Hadi Amiri Rudbari、Giuseppe Bruno
DOI:10.1016/j.tet.2017.02.018
日期:2017.3
1,2,4-trisubstituted pyrrolo[1,2-a]quinoxalines are synthesized through the multi-component reaction of 3-substituted 2-chloroquinoxalines, propargyl bromide, and excess secondary amines in the presence of a palladium copper catalytic system. This one-pot process provides an unexpected synthesis of new trisubstituted pyrrolo[1,2-a]quinoxalines by the introduction of two amine substituents onto the
在钯铜催化体系的存在下,通过3-取代的2-氯喹喔啉,炔丙基溴和过量的仲胺的多组分反应合成1,2,4-三取代的吡咯并[1,2- a ]喹喔啉。该一锅法通过在单个反应过程中将两个胺取代基引入到稠合的吡咯环上,提供了新的三取代的吡咯并[1,2- a ]喹喔啉的意外合成。形成的化合物通过分析光谱数据和X射线分析得到充分表征。还针对三种细菌菌株:黄褐微球菌,铜绿假单胞菌和铜绿假单胞菌,筛选了许多合成的吡咯并[1,2- a ]喹喔啉衍生物。枯草芽孢杆菌。根据获得的结果,化合物3b,3c和3e对黄褐毛病有活性,化合物3b和3e对Ps有活性。Aeruginos和只有化合物3f对这三种细菌均具有活性。
Discovery of novel morpholino–quinoxalines as PI3Kα inhibitors by pharmacophore-based screening
A pharmacophore model of PI3Kα inhibitors was built using the DiscoveryStudio 2.0 package. Pharmacophore-based screening (PBS) retrieved a series of novel morpholinoâquinoxalines as PI3Kα inhibitors, as exemplified by 1a (PI3Kα IC50: 0.44 μM). All target compounds showed good in vitro cytotoxicity against tested human cell lines. A pharmacophore mapping analysis and docking study indicated that both the morpholino group and the sulfonyl group contributed significantly to the potent PI3Kα inhibitory activity and cytotoxicity of the compounds.